EP3238901B1 - Bloc fonctionnel pour une installation de polyuréthane et son utilisation - Google Patents

Bloc fonctionnel pour une installation de polyuréthane et son utilisation Download PDF

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Publication number
EP3238901B1
EP3238901B1 EP17168375.8A EP17168375A EP3238901B1 EP 3238901 B1 EP3238901 B1 EP 3238901B1 EP 17168375 A EP17168375 A EP 17168375A EP 3238901 B1 EP3238901 B1 EP 3238901B1
Authority
EP
European Patent Office
Prior art keywords
functional block
component
pressure
metering pump
block according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17168375.8A
Other languages
German (de)
English (en)
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EP3238901A1 (fr
Inventor
Johann Resch
Martin ACHTER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polyplan-Gmbh Polyurethan-Maschinen
Original Assignee
Polyplan-Gmbh Polyurethan-Maschinen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of EP3238901A1 publication Critical patent/EP3238901A1/fr
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Publication of EP3238901B1 publication Critical patent/EP3238901B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/726—Measuring properties of mixture, e.g. temperature or density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/823—Temperature control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]

Definitions

  • the invention relates to a functional block for a polyurethane system according to the preamble of patent claim 1.
  • Polyurethane is known to be made by mixing liquid components. It is possible to produce polyurethane directly at the site of the application by dispensing the liquids required for formation through a mixing head. In order to obtain the desired material properties of the plastic thus formed, it is crucial to precisely meter the liquid components. Other parameters, such as pressure and temperature, must also be controlled in order to optimally influence the material properties.
  • a mixing plant with swash plate pump is from the US 4,170,440 A known. Another mixing plant is from the US 3,285,184 A known. A swash plate pump is out of the DE 197 40 436 A1 known.
  • An object of the present invention is therefore to provide a device for metering a liquid component, which is characterized by a small footprint, few components needed and as short as possible Strukturwegumblen the component has.
  • An advantage of the invention is that a functional block is obtained by the aligned arrangement of the metering pump, the clutch and the drive, which combines all the essential functions required for metering a fluid component in a very compact and space-saving design. Due to the aligned arrangement so creates a functional block, whose footprint required on the cross section of the components transverse to the axis of the Function block reduced.
  • the integral construction also eliminates the need for connecting lines between the various components, so that the winningwegroomn the component can be significantly shortened.
  • the one-piece design further has the advantage that the number of required components can be reduced, whereby the costs are reduced and the assembly costs are reduced.
  • integral is to be understood as meaning that the components of the integral unit are connected to one another in a coherent or form-fitting manner, but are at least constructively connected, for example screwed, welded or glued.
  • the components can also be connected by a common housing to form an integral unit. It is crucial in the context of the invention that the components are arranged in such a way that a one-piece functional block is formed in which the components are mechanically rigidly interconnected.
  • the fluid guidance of the component between the inlet and the outlet is guided completely within the functional block.
  • the distance of the component flow from the inlet to the outlet can be shortened, so that the flow and temperature losses are minimized.
  • the dosing accuracy of the component can be optimized.
  • the shorter distances also increase the control accuracy for the respective material flow, so that this also significantly improves the dosing accuracy of the component.
  • the filter unit is used to clean the component prior to pressurization. This improves the material properties of the final product. In addition, this reduces the wear of the metering pump. Due to the aligned arrangement on the axis of the function block, the dimensions of the function block are not unnecessarily increased and achieved an extremely compact design.
  • the filter unit is rigidly flanged to the functional block. This allows a simple change of the filter unit or a filter contained therein while maintaining stability of the structure. Further preferably, it is provided that the filter unit is flange-mounted on the distal end, that is to say on the side of the function block opposite the clutch or the drive. The filter unit is thus easily accessible, which further facilitates filter replacement.
  • the functional block comprises a signal distribution box, which provides a plurality of terminals for connection to sensors, preferably at least four terminals, more preferably eight terminals, and is designed to act as an interface to a computing unit.
  • the signal distribution box provides a plurality of terminals for connection to sensors, preferably at least four terminals, more preferably eight terminals, and is designed to act as an interface to a computing unit.
  • a first pressure sensor with which a feed pressure of the component at the inlet is detectable
  • a second pressure sensor with which an input pressure of the metering pump is detectable
  • a third pressure sensor with which an output pressure of the metering pump is detectable
  • a temperature sensor is integrated in the functional block, with which the temperature of the component is detectable.
  • An increase in the component temperature during operation may indicate a defect in the delivery path. It can be created with the temperature measurement so a simple monitoring option of the functionality of the function block.
  • the knowledge of the temperature to the exactest possible dosage of the component is required in order to accurately capture or calculate the amount of subsidized in a given unit of time component.
  • a volume sensor is provided in the flow path upstream of the outlet, with which the flow rate of the component at the outlet can be detected.
  • the volume flow of the component and its dosage can be monitored.
  • a check valve is provided which prevents backflow of the component in the opposite direction of conveyance.
  • leakage of the component can be prevented when a reservoir connected to the inlet is disconnected therefrom.
  • the reliability of the functional unit is increased, since in a blockage of the mixing head, the component is not pushed back into the metering pump.
  • a pressure limiting valve is provided in the flow path on the output side of the metering pump, which is designed such that when a maximum pressure is exceeded, a fluid connection to the inlet side of the metering pump is produced.
  • the maximum pressure in the function block can be maintained for a long time, even if the function block is not in operation for a long time.
  • the functional block includes a safety valve disposed in fluid communication with the flow path of the component such that it opens when a maximum system pressure is exceeded so that the pressure in the flow path drops.
  • a safety valve disposed in fluid communication with the flow path of the component such that it opens when a maximum system pressure is exceeded so that the pressure in the flow path drops.
  • a fan for cooling the drive is arranged on the drive. This can be an overheating of the drive can be avoided. It is preferred that the fan is also arranged in alignment with the other components on the axis of the functional block so as not to increase the footprint of the functional block.
  • the coupling is formed by a magnetic coupling or a dog clutch.
  • the magnetic coupling is characterized by high wear resistance and requires little maintenance.
  • the dog clutch has a simple structure, is inexpensive and also requires little maintenance.
  • the metering pump is formed by an axial piston pump. This is suitable for generating high pressures with good volumetric efficiency, and provides a high power density.
  • the drive is formed by a motor, in particular a servomotor.
  • a motor in particular a servomotor.
  • the speed of the drive is controllable, in particular as a function of detected pressure, temperature and volume values. It can thus be achieved by monitoring all relevant parameters, a highly accurate metering of the component.
  • FIG. 12 is a front view of a functional block according to an embodiment of the invention.
  • the functional block has a connection segment 12 with an inlet 10, to which a reservoir of a component to be conveyed or a loop leading the component can be connected.
  • the component is directed from the inlet 10 into the functional block.
  • Adjacent to the inlet 10 is - also on the connection segment - an outlet 11 is provided, from which the component is discharged in the high pressure.
  • a mixing head can be connected, in which the component metered can be promoted under a predetermined pressure.
  • a metering pump 21 Adjacent to the inlet 10 and the outlet 11, a metering pump 21 is provided with a Dosierpumpengephase 28.
  • the metering pump 21 is accommodated in the metering pump housing 28 and extends partially into the outlet segment 12.
  • the metering pump 21 is formed in the present embodiment by an axial piston pump.
  • the metering pump 21 is connected to a coupling 22, which is received in a connecting piece 22 a, which is arranged in alignment with the metering pump 21 and connected.
  • the clutch 22 is formed in the present embodiment as a dog clutch. However, it can also be used a magnetic coupling.
  • the second end of the clutch 22 is connected to a drive 23, which in turn is aligned with the Clutch 22 and the connecting piece 22 a is arranged.
  • the drive 23 is formed by a servo-synchronous motor with a torque of 45 Nm and a controllable speed up to 2000 revolutions per minute.
  • a filter unit 30 On the coupling 22 and the drive 23 opposite end of the functional block is a filter unit 30 which is rigidly connected to the functional block, in particular screwed there ..
  • the filter unit 30 is fluidly connected to the inlet 10, so that a supplied component of the Inlet 10 first flows through the filter unit 30.
  • a disposable filter In the filter element 30, a disposable filter is received, which preferably has a filter fineness of 200 microns. This can reliably remove impurities from the component. A change of the disposable filter can be done easily by the filter unit 30 is unscrewed and the disposable filter is replaced. Since the filter unit 30 is attached directly to the function block, the shortest possible flow path of the component is created in the function block.
  • a safety valve 27 is provided to limit the system pressure. It is at a point of the flow path downstream of the metering pump 21 arranged.
  • the safety valve 27 preferably limits the system pressure to 200 bar. When this pressure is exceeded, the safety valve 27 opens to dissipate the component to the outside and so to reduce the excessive pressure inside the function block and thus prevent damage to the components of the function block.
  • a fan 24 is provided, which is also arranged in alignment on the axis predetermined by the components 21,22 and 23.
  • the fan 24 serves to cool the drive 23.
  • the functional block is characterized by an extremely compact design.
  • a lower mounting plate 71 and an upper mounting plate 72 are provided on the back of the function block.
  • a double handle 73 is attached to the upper end of the connector 22a and provides a secure hold to lift the functional block.
  • a volume sensor 40 possibly also provided with a display. This serves to record and, if necessary, display the delivered volume flow.
  • the volume sensor 40 includes an associated port 65 which may be connected to the signal distribution port to output a signal from the flow rate sensor 40.
  • the functional block includes a signal distribution box 50 having a plurality of terminals 51. With the terminals 51 different sensors or measuring devices can be connected.
  • three pressure sensors 61, 62 and 63 (not shown) and a temperature sensor 64 are integrated in the functional block, which detect the pressure and the temperature of the component at different points of the flow path within the functional block.
  • Respective associated terminals 61a, 62a, 63a and 64a are led out of the functional block to the outside and in Fig. 1a visible, noticeable. These terminals 61a, 62a, 63a, 64a can be connected to the terminals 51 of the signal distribution box.
  • the signal paths of the required measurement signals can be kept short and the cost of wiring can be reduced, since only very short connection paths must be realized.
  • the signal distribution box 50 has more ports 51 than there are sensors in the functional block, other meaningful external signals can be provided be fed.
  • the temperature of the component in the reservoir or the pressure in the loop from which the component is supplied can be detected and used for fault diagnosis.
  • the pressure or flow rate of the component may be detected in a connectable mixing head to reliably detect and control metering and pressurization of the component.
  • FIG. 1b is a side view of the function block FIG. 1a shown.
  • the signal distribution box 50 has eight connections 51 for sensors.
  • the signal distribution box 50 also includes a signal connection 52, via which the function block can be connected to a computing unit.
  • the signal distribution box 50 serves as an interface, so that values detected by the sensors can be passed to the arithmetic unit for monitoring or a control of the function block by means of the arithmetic unit is made possible.
  • FIG. 2a the functional block is shown in a perspective front view.
  • FIG. 2b is a rear perspective view of the functional block.
  • a drive connection 53 and a fan connection 54 can be seen, via which the drive 23 and the fan 54 can be supplied with energy.
  • FIG. 3 illustrates a P & ID schema schematic of the function block.
  • the liquid component is sucked into the function block via the inlet 10.
  • the first pressure sensor 61 is provided, whose terminal 61a in the FIGS. 1a to 2a is shown. With the first pressure sensor 61, the input pressure is detected.
  • the component is next passed through the filter element 30 and de-contaminated.
  • the filtered component continues to flow into the metering pump 21.
  • the second pressure sensor 62 and the temperature sensor 64 are arranged on the inlet side of the metering pump 21, the second pressure sensor 62 and the temperature sensor 64 are arranged. From the difference in the pressure values measured by the first pressure sensor 61 and the second pressure sensor 62, the pressure drop across the filter element 30 can be detected and it can be determined whether the disposable filter needs to be replaced.
  • the metering pump 21 is connected via the clutch 22 to the drive 23 and is driven by this.
  • the outlet side of the metering pump 21 is the third Pressure sensor 63 is arranged, which detects the pressure of the component after pressurization.
  • the component flows through a check valve 25. This prevents a backflow of the component into the metering pump 21.
  • the volume sensor 65 is arranged and detects the flow rate of the component.
  • a pressure relief valve 26 is provided, which produces a fluid connection to the input side of the metering pump 21 when a limit pressure is exceeded.
  • the limit pressure is chosen according to the manufacturing process (low-pressure method or high-pressure method), but does not exceed the maximum system pressure at which the safety valve 27 opens.
  • the speed of the servo synchromesh which is provided as the drive 23 in the described embodiment, can be controlled with high precision.
  • the pressurization of the component by means of the metering pump 21 can be accurately controlled.
  • the output pressure and the delivery amount of the component can be controlled with high precision.
  • the measured pressure, temperature and volume values can be taken into account, so that the precision of the component delivery is increased again and a reliable fault diagnosis can be performed. Since the whole in FIG. 3 flow path is formed in the functional block in a confined space, the flow and temperature losses are reduced to a minimum.
  • the recorded pressure and temperature values therefore also have low hysteresis and high accuracy.
  • two of the functional blocks described can be used, each of which promotes one of the required components in a suitable mixing head.
  • the two functional blocks are then controlled by a control unit, so that the mixing ratio of the two components and the total application quantity can be reliably controlled.
  • a complete mobile polyurethane plant can be created with a small footprint, which is for example ideal for mounting on a robot.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Accessories For Mixers (AREA)

Claims (17)

  1. Bloc fonctionnel pour une installation de mélange destinée au dosage d'un composant liquide, en particulier pour la fabrication de polyuréthane, comprenant:
    - une entrée (10) pour la fourniture du composant,
    - une sortie (11) pour l'extraction du composant,
    - une pompe de dosage (21) pour le transport du composant à partir de l'entrée (10) et pour l'augmentation de la pression du composant,
    - un entraînement (23) pour la pompe de dosage (21),
    - un accouplement (22) pour la liaison entre la pompe de dosage (21) et l'entraînement (23),
    caractérisé en ce que le bloc fonctionnel est réalisé sous la forme d'une unité intégrée, du fait que les composants du bloc fonctionnel sont assemblés en une unité intégrée au moyen d'un boîtier commun,
    et le guidage fluide du composant entre l'entrée (10) et la sortie (11) est mené entièrement à l'intérieur du bloc fonctionnel,
    dans lequel le bloc fonctionnel présente un axe, sur lequel la pompe de dosage (21), l'accouplement (22) et l'entraînement (23) sont disposés en alignement,
    dans lequel le bloc fonctionnel comprend une unité de filtre (30), qui est disposée en alignement sur l'axe du bloc fonctionnel et qui est fluidiquement connectée dans un chemin d'écoulement entre l'entrée (10) et la pompe de dosage (21).
  2. Bloc fonctionnel selon la revendication 1, caractérisé en ce que l'unité de filtre (30) est rigidement assemblée par bridage au bloc fonctionnel.
  3. Bloc fonctionnel selon la revendication 2, caractérisé en ce que l'unité de filtre (30) est assemblée par bridage au bloc fonctionnel sur le côté opposé à l'accouplement (22) ou à l'entraînement (23).
  4. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé par une boîte de répartition de signaux (50), qui procure une multiplicité de raccords (51) pour le raccordement à des capteurs, de préférence au moins quatre raccords (51), de préférence encore huit raccords (51), et qui est configurée pour faire office d'interface vers une unité de calcul.
  5. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un premier capteur de pression (61), avec lequel une pression d'alimentation du composant à l'entrée (10) peut être détectée, et/ou un deuxième capteur de pression (62), avec lequel une pression d'entrée de la pompe de dosage (21) peut être détectée, et/ou un troisième capteur de pression (63), avec lequel une pression de sortie de la pompe de dosage (21) peut être détectée, est intégré dans le bloc fonctionnel.
  6. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un capteur de température (64), avec lequel la température du composant peut être détectée, est intégré dans le bloc fonctionnel.
  7. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu dans le chemin d'écoulement avant la sortie (11) un détecteur de volume (40), avec lequel un débit volumique du composant à la sortie (11) peut être détecté.
  8. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu à la sortie de la pompe de dosage (21) un clapet anti-retour (25), qui empêche un reflux du composant contre la direction de transport.
  9. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu dans le chemin d'écoulement, à la sortie de la pompe de dosage (21), une soupape de limitation de pression (26), qui est réalisée de telle manière qu'en cas de dépassement d'une pression maximale il s'établisse une liaison fluidique avec le côté d'entrée de la pompe de dosage (21).
  10. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé par une soupape de sécurité (27), qui est disposée en liaison fluidique avec le chemin d'écoulement du composant, et est configurée de telle manière qu'en cas de dépassement d'une pression de système maximale elle s'ouvre de telle façon que la pression baisse dans le chemin d'écoulement.
  11. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un ventilateur (24) est disposé sur l'entraînement (23) pour le refroidissement de l'entraînement (23).
  12. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce que l'accouplement (22) est formé par un accouplement magnétique ou un accouplement à crabot.
  13. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce que la pompe de dosage (21) est formée par une pompe à piston axial.
  14. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entraînement (23) est formé par un moteur, en particulier un servomoteur.
  15. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce que la vitesse de rotation de l'entraînement (23) peut être réglée en particulier en fonction de valeurs détectées de la pression, de la température et du volume.
  16. Bloc fonctionnel selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu pour le montage du bloc fonctionnel sur un robot une plaque de fixation inférieure (71) et une plaque de fixation supérieure (72) sur le côté arrière du bloc fonctionnel.
  17. Utilisation de deux blocs fonctionnels selon l'une quelconque des revendications 1 à 16 pour la fabrication de polyuréthane, dans lequel chaque bloc fonctionnel transporte respectivement un composant dans une tête de mélange.
EP17168375.8A 2016-04-29 2017-04-27 Bloc fonctionnel pour une installation de polyuréthane et son utilisation Active EP3238901B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016108020.9A DE102016108020A1 (de) 2016-04-29 2016-04-29 Funktionsblock für eine Polyurethananlage

Publications (2)

Publication Number Publication Date
EP3238901A1 EP3238901A1 (fr) 2017-11-01
EP3238901B1 true EP3238901B1 (fr) 2019-10-30

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DE (1) DE102016108020A1 (fr)

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EP0628390B1 (fr) * 1993-06-08 1997-04-23 MICAFIL Vakuumtechnik AG Pompe de dosage et de transport et utilisation d'une telle pompe dans une installation pour la fabrication de corps moulés en résine
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